Talk from React Amsterdam Conference 2017 https://react.amsterdam
Max Stoiber, Co-founder and CTO of Space Program (Spectrum)
React popularized a new way of building user interfaces – components. By splitting our app into small, digestible parts the system as a whole becomes a lot easier to understand.
CSS was made in an era where documents were the height of the web. It doesn't fit easily into component-based systems, making styling one of the pain points of building React applications.